UUID Generator
Generate UUIDs in v1, v4 or v7 format. Bulk generate up to 100 at once.
Version
v4 — Random
Completely random. Most widely used version. Best for general purpose unique IDs.
Completely random. Most widely used version. Best for general purpose unique IDs.
Quantity
max 100
Generated UUIDs
Click Generate to create UUIDs
FAQ
Frequently Asked Questions
They are the same thing. GUID (Globally Unique Identifier) is Microsoft's term for UUID. Both follow the same format and standard.
Theoretically yes but practically no. A v4 UUID has 122 random bits — the probability of a collision is so astronomically small it is considered impossible in real world applications.
Use v4 for most cases — it is random and universally supported. Use v7 if you need UUIDs that sort chronologically, which is useful for database primary keys. Avoid v1 in new projects as it exposes your machine's MAC address.